The story
In addition to making its own brand products, Rega is an OEM supplier. For example, Rega arms or variants are found in numerous other audiophile turntables. It also manufactured a slightly modified version of its Planar 2 with a RB250 arm for NAD that was marketed under the NAD533 model number.
In 2014, Rega maintains a custom-built factory and has over 140 employees. It has no marketing department, but produces every model in the UK, and tries to maintain UK-based parts suppliers as well. Rega has advertised once, stating that it does not advertise as it prefers to invest the money saved in research and product development. The Rega factory is located in Southend-on-Sea, Essex.
From Wikipedia’s article on Rega Research, shared under CC BY-SA 4.0.4